20755714

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 38905920

約数和(自身を除く): 18150206

約数列:

[1, 2, 7, 14, 19, 38, 49, 71, 98, 133, 142, 157, 266, 314, 497, 931, 994, 1099, 1349, 1862, 2198, 2698, 2983, 3479, 5966, 6958, 7693, 9443, 11147, 15386, 18886, 20881, 22294, 41762, 66101, 78029, 132202, 146167, 156058, 211793, 292334, 423586, 546203, 1092406, 1482551, 2965102, 10377857, 20755714]

約数ペア:

[(1, 20755714), (2, 10377857), (7, 2965102), (14, 1482551), (19, 1092406), (38, 546203), (49, 423586), (71, 292334), (98, 211793), (133, 156058), (142, 146167), (157, 132202), (266, 78029), (314, 66101), (497, 41762), (931, 22294), (994, 20881), (1099, 18886), (1349, 15386), (1862, 11147), (2198, 9443), (2698, 7693), (2983, 6958), (3479, 5966)]